TT spi 240x320 pins on portenta breakout

Arduino Boards
1

hello everyone, i am using 2.8" TFT spi 30411 to display my image frame on the LCD using portenta breakout, but i am getting senor control failed error : ValueError: Pin(P3) doesn’t exist
OpenMV v4.4.2; MicroPython v1.19-omv-r6; PORTENTA-STM32H747
while using this code
anyone can tell me which pins i have to use to connect my LCD with the portenta breakout.
thankyou,

#TFT screen demo to steam frame buffer to a external SPI screen

import sensor, image, time
from machine import SPI
from OpenMV_TFT import TFT

sensor.reset()
sensor.set_pixformat(sensor.GRAYSCALE)
sensor.set_framesize(sensor.QVGA)
sensor.skip_frames(time = 2000)

clock = time.clock()

spi = SPI(2, baudrate=54000000) #create an SPI bus

#create an instance of the screen driver
#you mustr pass a SPI bus and type of screen (ili9341 or st7735
#optional can pass cs pin and dc pin default is cs='P3' and dc='P9'
screen = TFT(spi, TFT.ili9341)

#set window on screen to write to (x_start, Y_start, width, height)
#the window needs to be inside the resolution of the screen and must match the exact size of fb
screen.set_window(0,0,320,240)


while(True):
    clock.tick()
    img = sensor.snapshot()

    # some image processing code goes here...

    screen.write_to_screen(img) #send the fb to the screen
    print(clock.fps())
2

Pins on the Portenta are here:

They don’t have the P0/P1 names. It’s just raw whatever the processor pin names are.

See this datasheet for the pin mapping of what pins go to what peripherals: https://www.st.com/resource/en/datasheet/stm32h753xi.pdf

SPI bus 2:

PB15 → SPI2 MOSI
PB14 → SPI2 MISO
PB13 → SPI2 Clock
PB12 → SPI2 NSS (use this as a GPIO - the SPI bus IP does not configure it)

Note, you need to edit the library code to fix this.

3

sir I am using portenta breakout board, i have managed to power up the LCD. Still, the only error I am getting is senor control fail, the datasheet provides pins for porenta h7 but I want to connect my LCD with portenta breakout.

4

The breakout board doesn’t work with any of our camera sensors. Arduino didn’t design the camera connector on that correctly and it can never function.

5

i already connected portenta h7 and portenta vision shield with the portenta breakout board, now i just want to show the image on tft LCD that i connected with the portenta breakout board but i cant find pins to connect the LCD with portenta breakout.

6

Okay… um, I guess read their documentation on which pins from the process go to what?

7

okay, ill read the documentation.